WindowOrWorkerGlobalScope

O mixin WindowOrWorkerGlobalScope descreve vários recursos comuns às interfaces Window e WorkerGlobalScope. Cada uma dessas interfaces pode, obviamente, adicionar mais recursos além dos listados abaixo.

Nota: WindowOrWorkerGlobalScope é um mixin e não uma interface; você não pode atualmente criar um objeto do tipo WindowOrWorkerGlobalScope.

Properties

These properties are defined on the WindowOrWorkerGlobalScope mixin, and implemented by Window and WorkerGlobalScope (en-US).

WindowOrWorkerGlobalScope.caches (en-US) Somente leitura: Returns the CacheStorage (en-US) object associated with the current context. This object enables functionality such as storing assets for offline use, and generating custom responses to requests.
WindowOrWorkerGlobalScope.indexedDB (en-US) Somente leitura: Provides a mechanism for applications to asynchronously access capabilities of indexed databases; returns an IDBFactory object.
WindowOrWorkerGlobalScope.isSecureContext (en-US) Somente leitura: Returns a boolean indicating whether the current context is secure (true) or not (false).
WindowOrWorkerGlobalScope.origin (en-US) Somente leitura: Returns the origin of the global scope, serialized as a string.

Methods

These properties are defined on the WindowOrWorkerGlobalScope mixin, and implemented by Window and WorkerGlobalScope (en-US).

WindowOrWorkerGlobalScope.atob(): Decodes a string of data which has been encoded using base-64 encoding.
WindowOrWorkerGlobalScope.btoa() (en-US): Creates a base-64 encoded ASCII string from a string of binary data.
WindowOrWorkerGlobalScope.clearInterval() (en-US): Cancels the repeated execution set using WindowOrWorkerGlobalScope.setInterval().
WindowOrWorkerGlobalScope.clearTimeout(): Cancels the delayed execution set using WindowOrWorkerGlobalScope.setTimeout() (en-US).
WindowOrWorkerGlobalScope.createImageBitmap() (en-US): Accepts a variety of different image sources, and returns a Promise (en-US) which resolves to an ImageBitmap (en-US). Optionally the source is cropped to the rectangle of pixels originating at (sx, sy) with width sw, and height sh.
WindowOrWorkerGlobalScope.fetch(): Starts the process of fetching a resource from the network.
WindowOrWorkerGlobalScope.setInterval(): Schedules a function to execute every time a given number of milliseconds elapses.
WindowOrWorkerGlobalScope.setTimeout() (en-US): Schedules a function to execute in a given amount of time.

Specifications

Specification	Status	Comment
HTML Living Standard The definition of '`WindowOrWorkerGlobalScope` mixin' in that specification.	Padrão em tempo real	This is where the main mixin is defined.
Fetch The definition of 'fetch()' in that specification.	Padrão em tempo real	Definition of the `fetch()` method.
Service Workers The definition of 'caches' in that specification.	Rascunho atual	Definition of the `caches` property.
Indexed Database API 2.0 The definition of 'indexedDB' in that specification.	Recomendação	Definition of the `indexedDB` property.
Secure Contexts The definition of 'isSecureContext' in that specification.	Candidata a Recomendação	Definition of the `isSecureContext` property.

Browser compatibility

Estamos convertendo nossos dados de compatibilidade para o formato JSON. Esta tabela de compatibilidade ainda usa o formato antigo, pois ainda não convertemos os dados que ela contém. Descubra como você pode ajudar! (en-US)

Desktop
Dispositivo móvel

Feature	Firefox (Gecko)	Chrome	Edge	Internet Explorer	Opera	Safari
Basic support	52 (52)	54	?	?	?	?
`origin`	54 (54)	59	?	?	?	?

Feature	Android Webview	Edge	Firefox Mobile (Gecko)	Android	IE Mobile	Opera Mobile	Safari Mobile	Chrome for Android
Basic support	?	?	52.0 (52)	?	?	?	?	54
`origin`	?	?	54.0 (54)	?	?	?	?	59